{"cve":"CVE-2026-119409","nvd":{"published":"2026-10-30T12:16:37.510","modified":"2026-10-30T12:16:37.510","status":"Received","description":"OPNsense before 26.7.8 contains a command injection vulnerability that allows authenticated users with the System: Firmware privilege to execute commands as root by storing a malicious firmware mirror URL. Attackers can submit shell metacharacters through POST /api/core/firmware/set that opnsense-update evaluates with eval, and can also disable package signature verification through sed injection.","cvss_v4":{"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","score":8.6},"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","score":7.2},"cwes":["CWE-78"],"references":["https://abraxaslabs.tech/research/opnsense-firmware-mirror-sed","https://github.com/opnsense/core","https://github.com/opnsense/core/commit/1cc41fc39da99d59818c789b3b561f1515126f47","https://github.com/opnsense/core/commit/8e214533d33c3af7481e86f616ee615adc6a0a73","https://github.com/opnsense/core/security/advisories/GHSA-p683-f7x2-pm4p"],"products":[],"source":"nvd","synced_at":"2026-10-30T12:42:57.962919830+00:00"},"epss":null,"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}